Yeah i done it all myself, spend a fair bit of time looking around forums for diy's and then gave it a go.
I changed the climate control, window switches and cruise control switches red by installing new LED's. While I changed the 12v socket and the key barrel red by installing bulb covers.
Here is a couple of pics:
Here is a thread from a while back, where i posted up the instructions I followed to install the LED's in the climate control.
http://www.perth-wrx.com/vb/cosmetic...-change-2.html
Hope this helps